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authorKees Cook <kees@kernel.org>2024-12-02 15:55:40 +0800
committerKees Cook <kees@kernel.org>2025-02-10 18:25:39 -0800
commitdb6fe4d61ece24193eb4d94a82d967501d53358c (patch)
tree6c4cd0e856fb6249cfb0cb6a45b87f5dfafbb6f8 /lib/list-test.c
parent84ec093f55f58f5a4a66eb98bd6b6af413190bde (diff)
lib: Move KUnit tests into tests/ subdirectory
Following from the recent KUnit file naming discussion[1], move all KUnit tests in lib/ into lib/tests/. Link: https://lore.kernel.org/lkml/20240720165441.it.320-kees@kernel.org/ [1] Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Rae Moar <rmoar@google.com> Link: https://lore.kernel.org/r/20241202075545.3648096-4-davidgow@google.com Signed-off-by: Kees Cook <kees@kernel.org>
Diffstat (limited to 'lib/list-test.c')
-rw-r--r--lib/list-test.c1505
1 files changed, 0 insertions, 1505 deletions
diff --git a/lib/list-test.c b/lib/list-test.c
deleted file mode 100644
index 9135cdc1bb39..000000000000
--- a/lib/list-test.c
+++ /dev/null
@@ -1,1505 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * KUnit test for the Kernel Linked-list structures.
- *
- * Copyright (C) 2019, Google LLC.
- * Author: David Gow <davidgow@google.com>
- */
-#include <kunit/test.h>
-
-#include <linux/list.h>
-#include <linux/klist.h>
-
-struct list_test_struct {
- int data;
- struct list_head list;
-};
-
-static void list_test_list_init(struct kunit *test)
-{
- /* Test the different ways of initialising a list. */
- struct list_head list1 = LIST_HEAD_INIT(list1);
- struct list_head list2;
- LIST_HEAD(list3);
- struct list_head *list4;
- struct list_head *list5;
-
- INIT_LIST_HEAD(&list2);
-
- list4 = kzalloc(sizeof(*list4), GFP_KERNEL | __GFP_NOFAIL);
- INIT_LIST_HEAD(list4);
-
- list5 = kmalloc(sizeof(*list5), GFP_KERNEL | __GFP_NOFAIL);
- memset(list5, 0xFF, sizeof(*list5));
- INIT_LIST_HEAD(list5);
-
- /* list_empty_careful() checks both next and prev. */
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&list1));
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&list2));
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&list3));
- KUNIT_EXPECT_TRUE(test, list_empty_careful(list4));
- KUNIT_EXPECT_TRUE(test, list_empty_careful(list5));
-
- kfree(list4);
- kfree(list5);
-}
-
-static void list_test_list_add(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add(&a, &list);
- list_add(&b, &list);
-
- /* should be [list] -> b -> a */
- KUNIT_EXPECT_PTR_EQ(test, list.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &list);
- KUNIT_EXPECT_PTR_EQ(test, b.next, &a);
-}
-
-static void list_test_list_add_tail(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- /* should be [list] -> a -> b */
- KUNIT_EXPECT_PTR_EQ(test, list.next, &a);
- KUNIT_EXPECT_PTR_EQ(test, a.prev, &list);
- KUNIT_EXPECT_PTR_EQ(test, a.next, &b);
-}
-
-static void list_test_list_del(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a -> b */
- list_del(&a);
-
- /* now: [list] -> b */
- KUNIT_EXPECT_PTR_EQ(test, list.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &list);
-}
-
-static void list_test_list_replace(struct kunit *test)
-{
- struct list_head a_old, a_new, b;
- LIST_HEAD(list);
-
- list_add_tail(&a_old, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a_old -> b */
- list_replace(&a_old, &a_new);
-
- /* now: [list] -> a_new -> b */
- KUNIT_EXPECT_PTR_EQ(test, list.next, &a_new);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &a_new);
- KUNIT_EXPECT_PTR_EQ(test, a_new.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, a_new.prev, &list);
-}
-
-static void list_test_list_replace_init(struct kunit *test)
-{
- struct list_head a_old, a_new, b;
- LIST_HEAD(list);
-
- list_add_tail(&a_old, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a_old -> b */
- list_replace_init(&a_old, &a_new);
-
- /* now: [list] -> a_new -> b */
- KUNIT_EXPECT_PTR_EQ(test, list.next, &a_new);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &a_new);
- KUNIT_EXPECT_PTR_EQ(test, a_new.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, a_new.prev, &list);
-
- /* check a_old is empty (initialized) */
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&a_old));
-}
-
-static void list_test_list_swap(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a -> b */
- list_swap(&a, &b);
-
- /* after: [list] -> b -> a */
- KUNIT_EXPECT_PTR_EQ(test, &b, list.next);
- KUNIT_EXPECT_PTR_EQ(test, &a, list.prev);
-
- KUNIT_EXPECT_PTR_EQ(test, &a, b.next);
- KUNIT_EXPECT_PTR_EQ(test, &list, b.prev);
-
- KUNIT_EXPECT_PTR_EQ(test, &list, a.next);
- KUNIT_EXPECT_PTR_EQ(test, &b, a.prev);
-}
-
-static void list_test_list_del_init(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a -> b */
- list_del_init(&a);
- /* after: [list] -> b, a initialised */
-
- KUNIT_EXPECT_PTR_EQ(test, list.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &list);
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&a));
-}
-
-static void list_test_list_del_init_careful(struct kunit *test)
-{
- /* NOTE: This test only checks the behaviour of this function in
- * isolation. It does not verify memory model guarantees.
- */
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a -> b */
- list_del_init_careful(&a);
- /* after: [list] -> b, a initialised */
-
- KUNIT_EXPECT_PTR_EQ(test, list.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &list);
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&a));
-}
-
-static void list_test_list_move(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
-
- list_add_tail(&a, &list1);
- list_add_tail(&b, &list2);
-
- /* before: [list1] -> a, [list2] -> b */
- list_move(&a, &list2);
- /* after: [list1] empty, [list2] -> a -> b */
-
- KUNIT_EXPECT_TRUE(test, list_empty(&list1));
-
- KUNIT_EXPECT_PTR_EQ(test, &a, list2.next);
- KUNIT_EXPECT_PTR_EQ(test, &b, a.next);
-}
-
-static void list_test_list_move_tail(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
-
- list_add_tail(&a, &list1);
- list_add_tail(&b, &list2);
-
- /* before: [list1] -> a, [list2] -> b */
- list_move_tail(&a, &list2);
- /* after: [list1] empty, [list2] -> b -> a */
-
- KUNIT_EXPECT_TRUE(test, list_empty(&list1));
-
- KUNIT_EXPECT_PTR_EQ(test, &b, list2.next);
- KUNIT_EXPECT_PTR_EQ(test, &a, b.next);
-}
-
-static void list_test_list_bulk_move_tail(struct kunit *test)
-{
- struct list_head a, b, c, d, x, y;
- struct list_head *list1_values[] = { &x, &b, &c, &y };
- struct list_head *list2_values[] = { &a, &d };
- struct list_head *ptr;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&x, &list1);
- list_add_tail(&y, &list1);
-
- list_add_tail(&a, &list2);
- list_add_tail(&b, &list2);
- list_add_tail(&c, &list2);
- list_add_tail(&d, &list2);
-
- /* before: [list1] -> x -> y, [list2] -> a -> b -> c -> d */
- list_bulk_move_tail(&y, &b, &c);
- /* after: [list1] -> x -> b -> c -> y, [list2] -> a -> d */
-
- list_for_each(ptr, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, ptr, list1_values[i]);
- i++;
- }
- KUNIT_EXPECT_EQ(test, i, 4);
- i = 0;
- list_for_each(ptr, &list2) {
- KUNIT_EXPECT_PTR_EQ(test, ptr, list2_values[i]);
- i++;
- }
- KUNIT_EXPECT_EQ(test, i, 2);
-}
-
-static void list_test_list_is_head(struct kunit *test)
-{
- struct list_head a, b, c;
-
- /* Two lists: [a] -> b, [c] */
- INIT_LIST_HEAD(&a);
- INIT_LIST_HEAD(&c);
- list_add_tail(&b, &a);
-
- KUNIT_EXPECT_TRUE_MSG(test, list_is_head(&a, &a),
- "Head element of same list");
- KUNIT_EXPECT_FALSE_MSG(test, list_is_head(&a, &b),
- "Non-head element of same list");
- KUNIT_EXPECT_FALSE_MSG(test, list_is_head(&a, &c),
- "Head element of different list");
-}
-
-
-static void list_test_list_is_first(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- KUNIT_EXPECT_TRUE(test, list_is_first(&a, &list));
- KUNIT_EXPECT_FALSE(test, list_is_first(&b, &list));
-}
-
-static void list_test_list_is_last(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- KUNIT_EXPECT_FALSE(test, list_is_last(&a, &list));
- KUNIT_EXPECT_TRUE(test, list_is_last(&b, &list));
-}
-
-static void list_test_list_empty(struct kunit *test)
-{
- struct list_head a;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
-
- list_add_tail(&a, &list1);
-
- KUNIT_EXPECT_FALSE(test, list_empty(&list1));
- KUNIT_EXPECT_TRUE(test, list_empty(&list2));
-}
-
-static void list_test_list_empty_careful(struct kunit *test)
-{
- /* This test doesn't check correctness under concurrent access */
- struct list_head a;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
-
- list_add_tail(&a, &list1);
-
- KUNIT_EXPECT_FALSE(test, list_empty_careful(&list1));
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&list2));
-}
-
-static void list_test_list_rotate_left(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
-
- /* before: [list] -> a -> b */
- list_rotate_left(&list);
- /* after: [list] -> b -> a */
-
- KUNIT_EXPECT_PTR_EQ(test, list.next, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.prev, &list);
- KUNIT_EXPECT_PTR_EQ(test, b.next, &a);
-}
-
-static void list_test_list_rotate_to_front(struct kunit *test)
-{
- struct list_head a, b, c, d;
- struct list_head *list_values[] = { &c, &d, &a, &b };
- struct list_head *ptr;
- LIST_HEAD(list);
- int i = 0;
-
- list_add_tail(&a, &list);
- list_add_tail(&b, &list);
- list_add_tail(&c, &list);
- list_add_tail(&d, &list);
-
- /* before: [list] -> a -> b -> c -> d */
- list_rotate_to_front(&c, &list);
- /* after: [list] -> c -> d -> a -> b */
-
- list_for_each(ptr, &list) {
- KUNIT_EXPECT_PTR_EQ(test, ptr, list_values[i]);
- i++;
- }
- KUNIT_EXPECT_EQ(test, i, 4);
-}
-
-static void list_test_list_is_singular(struct kunit *test)
-{
- struct list_head a, b;
- LIST_HEAD(list);
-
- /* [list] empty */
- KUNIT_EXPECT_FALSE(test, list_is_singular(&list));
-
- list_add_tail(&a, &list);
-
- /* [list] -> a */
- KUNIT_EXPECT_TRUE(test, list_is_singular(&list));
-
- list_add_tail(&b, &list);
-
- /* [list] -> a -> b */
- KUNIT_EXPECT_FALSE(test, list_is_singular(&list));
-}
-
-static void list_test_list_cut_position(struct kunit *test)
-{
- struct list_head entries[3], *cur;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&entries[0], &list1);
- list_add_tail(&entries[1], &list1);
- list_add_tail(&entries[2], &list1);
-
- /* before: [list1] -> entries[0] -> entries[1] -> entries[2] */
- list_cut_position(&list2, &list1, &entries[1]);
- /* after: [list2] -> entries[0] -> entries[1], [list1] -> entries[2] */
-
- list_for_each(cur, &list2) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 2);
-
- list_for_each(cur, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 3);
-}
-
-static void list_test_list_cut_before(struct kunit *test)
-{
- struct list_head entries[3], *cur;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&entries[0], &list1);
- list_add_tail(&entries[1], &list1);
- list_add_tail(&entries[2], &list1);
-
- /* before: [list1] -> entries[0] -> entries[1] -> entries[2] */
- list_cut_before(&list2, &list1, &entries[1]);
- /* after: [list2] -> entries[0], [list1] -> entries[1] -> entries[2] */
-
- list_for_each(cur, &list2) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 1);
-
- list_for_each(cur, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 3);
-}
-
-static void list_test_list_splice(struct kunit *test)
-{
- struct list_head entries[5], *cur;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&entries[0], &list1);
- list_add_tail(&entries[1], &list1);
- list_add_tail(&entries[2], &list2);
- list_add_tail(&entries[3], &list2);
- list_add_tail(&entries[4], &list1);
-
- /* before: [list1]->e[0]->e[1]->e[4], [list2]->e[2]->e[3] */
- list_splice(&list2, &entries[1]);
- /* after: [list1]->e[0]->e[1]->e[2]->e[3]->e[4], [list2] uninit */
-
- list_for_each(cur, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
-}
-
-static void list_test_list_splice_tail(struct kunit *test)
-{
- struct list_head entries[5], *cur;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&entries[0], &list1);
- list_add_tail(&entries[1], &list1);
- list_add_tail(&entries[2], &list2);
- list_add_tail(&entries[3], &list2);
- list_add_tail(&entries[4], &list1);
-
- /* before: [list1]->e[0]->e[1]->e[4], [list2]->e[2]->e[3] */
- list_splice_tail(&list2, &entries[4]);
- /* after: [list1]->e[0]->e[1]->e[2]->e[3]->e[4], [list2] uninit */
-
- list_for_each(cur, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
-}
-
-static void list_test_list_splice_init(struct kunit *test)
-{
- struct list_head entries[5], *cur;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&entries[0], &list1);
- list_add_tail(&entries[1], &list1);
- list_add_tail(&entries[2], &list2);
- list_add_tail(&entries[3], &list2);
- list_add_tail(&entries[4], &list1);
-
- /* before: [list1]->e[0]->e[1]->e[4], [list2]->e[2]->e[3] */
- list_splice_init(&list2, &entries[1]);
- /* after: [list1]->e[0]->e[1]->e[2]->e[3]->e[4], [list2] empty */
-
- list_for_each(cur, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
-
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&list2));
-}
-
-static void list_test_list_splice_tail_init(struct kunit *test)
-{
- struct list_head entries[5], *cur;
- LIST_HEAD(list1);
- LIST_HEAD(list2);
- int i = 0;
-
- list_add_tail(&entries[0], &list1);
- list_add_tail(&entries[1], &list1);
- list_add_tail(&entries[2], &list2);
- list_add_tail(&entries[3], &list2);
- list_add_tail(&entries[4], &list1);
-
- /* before: [list1]->e[0]->e[1]->e[4], [list2]->e[2]->e[3] */
- list_splice_tail_init(&list2, &entries[4]);
- /* after: [list1]->e[0]->e[1]->e[2]->e[3]->e[4], [list2] empty */
-
- list_for_each(cur, &list1) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
-
- KUNIT_EXPECT_TRUE(test, list_empty_careful(&list2));
-}
-
-static void list_test_list_entry(struct kunit *test)
-{
- struct list_test_struct test_struct;
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct, list_entry(&(test_struct.list),
- struct list_test_struct, list));
-}
-
-static void list_test_list_entry_is_head(struct kunit *test)
-{
- struct list_test_struct test_struct1, test_struct2, test_struct3;
-
- INIT_LIST_HEAD(&test_struct1.list);
- INIT_LIST_HEAD(&test_struct3.list);
-
- list_add_tail(&test_struct2.list, &test_struct1.list);
-
- KUNIT_EXPECT_TRUE_MSG(test,
- list_entry_is_head((&test_struct1), &test_struct1.list, list),
- "Head element of same list");
- KUNIT_EXPECT_FALSE_MSG(test,
- list_entry_is_head((&test_struct2), &test_struct1.list, list),
- "Non-head element of same list");
- KUNIT_EXPECT_FALSE_MSG(test,
- list_entry_is_head((&test_struct3), &test_struct1.list, list),
- "Head element of different list");
-}
-
-static void list_test_list_first_entry(struct kunit *test)
-{
- struct list_test_struct test_struct1, test_struct2;
- LIST_HEAD(list);
-
- list_add_tail(&test_struct1.list, &list);
- list_add_tail(&test_struct2.list, &list);
-
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct1, list_first_entry(&list,
- struct list_test_struct, list));
-}
-
-static void list_test_list_last_entry(struct kunit *test)
-{
- struct list_test_struct test_struct1, test_struct2;
- LIST_HEAD(list);
-
- list_add_tail(&test_struct1.list, &list);
- list_add_tail(&test_struct2.list, &list);
-
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct2, list_last_entry(&list,
- struct list_test_struct, list));
-}
-
-static void list_test_list_first_entry_or_null(struct kunit *test)
-{
- struct list_test_struct test_struct1, test_struct2;
- LIST_HEAD(list);
-
- KUNIT_EXPECT_FALSE(test, list_first_entry_or_null(&list,
- struct list_test_struct, list));
-
- list_add_tail(&test_struct1.list, &list);
- list_add_tail(&test_struct2.list, &list);
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct1,
- list_first_entry_or_null(&list,
- struct list_test_struct, list));
-}
-
-static void list_test_list_next_entry(struct kunit *test)
-{
- struct list_test_struct test_struct1, test_struct2;
- LIST_HEAD(list);
-
- list_add_tail(&test_struct1.list, &list);
- list_add_tail(&test_struct2.list, &list);
-
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct2, list_next_entry(&test_struct1,
- list));
-}
-
-static void list_test_list_prev_entry(struct kunit *test)
-{
- struct list_test_struct test_struct1, test_struct2;
- LIST_HEAD(list);
-
- list_add_tail(&test_struct1.list, &list);
- list_add_tail(&test_struct2.list, &list);
-
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct1, list_prev_entry(&test_struct2,
- list));
-}
-
-static void list_test_list_for_each(struct kunit *test)
-{
- struct list_head entries[3], *cur;
- LIST_HEAD(list);
- int i = 0;
-
- list_add_tail(&entries[0], &list);
- list_add_tail(&entries[1], &list);
- list_add_tail(&entries[2], &list);
-
- list_for_each(cur, &list) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 3);
-}
-
-static void list_test_list_for_each_prev(struct kunit *test)
-{
- struct list_head entries[3], *cur;
- LIST_HEAD(list);
- int i = 2;
-
- list_add_tail(&entries[0], &list);
- list_add_tail(&entries[1], &list);
- list_add_tail(&entries[2], &list);
-
- list_for_each_prev(cur, &list) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i--;
- }
-
- KUNIT_EXPECT_EQ(test, i, -1);
-}
-
-static void list_test_list_for_each_safe(struct kunit *test)
-{
- struct list_head entries[3], *cur, *n;
- LIST_HEAD(list);
- int i = 0;
-
-
- list_add_tail(&entries[0], &list);
- list_add_tail(&entries[1], &list);
- list_add_tail(&entries[2], &list);
-
- list_for_each_safe(cur, n, &list) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- list_del(&entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 3);
- KUNIT_EXPECT_TRUE(test, list_empty(&list));
-}
-
-static void list_test_list_for_each_prev_safe(struct kunit *test)
-{
- struct list_head entries[3], *cur, *n;
- LIST_HEAD(list);
- int i = 2;
-
- list_add_tail(&entries[0], &list);
- list_add_tail(&entries[1], &list);
- list_add_tail(&entries[2], &list);
-
- list_for_each_prev_safe(cur, n, &list) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- list_del(&entries[i]);
- i--;
- }
-
- KUNIT_EXPECT_EQ(test, i, -1);
- KUNIT_EXPECT_TRUE(test, list_empty(&list));
-}
-
-static void list_test_list_for_each_entry(struct kunit *test)
-{
- struct list_test_struct entries[5], *cur;
- LIST_HEAD(list);
- int i = 0;
-
- for (i = 0; i < 5; ++i) {
- entries[i].data = i;
- list_add_tail(&entries[i].list, &list);
- }
-
- i = 0;
-
- list_for_each_entry(cur, &list, list) {
- KUNIT_EXPECT_EQ(test, cur->data, i);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
-}
-
-static void list_test_list_for_each_entry_reverse(struct kunit *test)
-{
- struct list_test_struct entries[5], *cur;
- LIST_HEAD(list);
- int i = 0;
-
- for (i = 0; i < 5; ++i) {
- entries[i].data = i;
- list_add_tail(&entries[i].list, &list);
- }
-
- i = 4;
-
- list_for_each_entry_reverse(cur, &list, list) {
- KUNIT_EXPECT_EQ(test, cur->data, i);
- i--;
- }
-
- KUNIT_EXPECT_EQ(test, i, -1);
-}
-
-static struct kunit_case list_test_cases[] = {
- KUNIT_CASE(list_test_list_init),
- KUNIT_CASE(list_test_list_add),
- KUNIT_CASE(list_test_list_add_tail),
- KUNIT_CASE(list_test_list_del),
- KUNIT_CASE(list_test_list_replace),
- KUNIT_CASE(list_test_list_replace_init),
- KUNIT_CASE(list_test_list_swap),
- KUNIT_CASE(list_test_list_del_init),
- KUNIT_CASE(list_test_list_del_init_careful),
- KUNIT_CASE(list_test_list_move),
- KUNIT_CASE(list_test_list_move_tail),
- KUNIT_CASE(list_test_list_bulk_move_tail),
- KUNIT_CASE(list_test_list_is_head),
- KUNIT_CASE(list_test_list_is_first),
- KUNIT_CASE(list_test_list_is_last),
- KUNIT_CASE(list_test_list_empty),
- KUNIT_CASE(list_test_list_empty_careful),
- KUNIT_CASE(list_test_list_rotate_left),
- KUNIT_CASE(list_test_list_rotate_to_front),
- KUNIT_CASE(list_test_list_is_singular),
- KUNIT_CASE(list_test_list_cut_position),
- KUNIT_CASE(list_test_list_cut_before),
- KUNIT_CASE(list_test_list_splice),
- KUNIT_CASE(list_test_list_splice_tail),
- KUNIT_CASE(list_test_list_splice_init),
- KUNIT_CASE(list_test_list_splice_tail_init),
- KUNIT_CASE(list_test_list_entry),
- KUNIT_CASE(list_test_list_entry_is_head),
- KUNIT_CASE(list_test_list_first_entry),
- KUNIT_CASE(list_test_list_last_entry),
- KUNIT_CASE(list_test_list_first_entry_or_null),
- KUNIT_CASE(list_test_list_next_entry),
- KUNIT_CASE(list_test_list_prev_entry),
- KUNIT_CASE(list_test_list_for_each),
- KUNIT_CASE(list_test_list_for_each_prev),
- KUNIT_CASE(list_test_list_for_each_safe),
- KUNIT_CASE(list_test_list_for_each_prev_safe),
- KUNIT_CASE(list_test_list_for_each_entry),
- KUNIT_CASE(list_test_list_for_each_entry_reverse),
- {},
-};
-
-static struct kunit_suite list_test_module = {
- .name = "list-kunit-test",
- .test_cases = list_test_cases,
-};
-
-struct hlist_test_struct {
- int data;
- struct hlist_node list;
-};
-
-static void hlist_test_init(struct kunit *test)
-{
- /* Test the different ways of initialising a list. */
- struct hlist_head list1 = HLIST_HEAD_INIT;
- struct hlist_head list2;
- HLIST_HEAD(list3);
- struct hlist_head *list4;
- struct hlist_head *list5;
-
- INIT_HLIST_HEAD(&list2);
-
- list4 = kzalloc(sizeof(*list4), GFP_KERNEL | __GFP_NOFAIL);
- INIT_HLIST_HEAD(list4);
-
- list5 = kmalloc(sizeof(*list5), GFP_KERNEL | __GFP_NOFAIL);
- memset(list5, 0xFF, sizeof(*list5));
- INIT_HLIST_HEAD(list5);
-
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list1));
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list2));
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list3));
- KUNIT_EXPECT_TRUE(test, hlist_empty(list4));
- KUNIT_EXPECT_TRUE(test, hlist_empty(list5));
-
- kfree(list4);
- kfree(list5);
-}
-
-static void hlist_test_unhashed(struct kunit *test)
-{
- struct hlist_node a;
- HLIST_HEAD(list);
-
- INIT_HLIST_NODE(&a);
-
- /* is unhashed by default */
- KUNIT_EXPECT_TRUE(test, hlist_unhashed(&a));
-
- hlist_add_head(&a, &list);
-
- /* is hashed once added to list */
- KUNIT_EXPECT_FALSE(test, hlist_unhashed(&a));
-
- hlist_del_init(&a);
-
- /* is again unhashed after del_init */
- KUNIT_EXPECT_TRUE(test, hlist_unhashed(&a));
-}
-
-/* Doesn't test concurrency guarantees */
-static void hlist_test_unhashed_lockless(struct kunit *test)
-{
- struct hlist_node a;
- HLIST_HEAD(list);
-
- INIT_HLIST_NODE(&a);
-
- /* is unhashed by default */
- KUNIT_EXPECT_TRUE(test, hlist_unhashed_lockless(&a));
-
- hlist_add_head(&a, &list);
-
- /* is hashed once added to list */
- KUNIT_EXPECT_FALSE(test, hlist_unhashed_lockless(&a));
-
- hlist_del_init(&a);
-
- /* is again unhashed after del_init */
- KUNIT_EXPECT_TRUE(test, hlist_unhashed_lockless(&a));
-}
-
-static void hlist_test_del(struct kunit *test)
-{
- struct hlist_node a, b;
- HLIST_HEAD(list);
-
- hlist_add_head(&a, &list);
- hlist_add_behind(&b, &a);
-
- /* before: [list] -> a -> b */
- hlist_del(&a);
-
- /* now: [list] -> b */
- KUNIT_EXPECT_PTR_EQ(test, list.first, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.pprev, &list.first);
-}
-
-static void hlist_test_del_init(struct kunit *test)
-{
- struct hlist_node a, b;
- HLIST_HEAD(list);
-
- hlist_add_head(&a, &list);
- hlist_add_behind(&b, &a);
-
- /* before: [list] -> a -> b */
- hlist_del_init(&a);
-
- /* now: [list] -> b */
- KUNIT_EXPECT_PTR_EQ(test, list.first, &b);
- KUNIT_EXPECT_PTR_EQ(test, b.pprev, &list.first);
-
- /* a is now initialised */
- KUNIT_EXPECT_PTR_EQ(test, a.next, NULL);
- KUNIT_EXPECT_PTR_EQ(test, a.pprev, NULL);
-}
-
-/* Tests all three hlist_add_* functions */
-static void hlist_test_add(struct kunit *test)
-{
- struct hlist_node a, b, c, d;
- HLIST_HEAD(list);
-
- hlist_add_head(&a, &list);
- hlist_add_head(&b, &list);
- hlist_add_before(&c, &a);
- hlist_add_behind(&d, &a);
-
- /* should be [list] -> b -> c -> a -> d */
- KUNIT_EXPECT_PTR_EQ(test, list.first, &b);
-
- KUNIT_EXPECT_PTR_EQ(test, c.pprev, &(b.next));
- KUNIT_EXPECT_PTR_EQ(test, b.next, &c);
-
- KUNIT_EXPECT_PTR_EQ(test, a.pprev, &(c.next));
- KUNIT_EXPECT_PTR_EQ(test, c.next, &a);
-
- KUNIT_EXPECT_PTR_EQ(test, d.pprev, &(a.next));
- KUNIT_EXPECT_PTR_EQ(test, a.next, &d);
-}
-
-/* Tests both hlist_fake() and hlist_add_fake() */
-static void hlist_test_fake(struct kunit *test)
-{
- struct hlist_node a;
-
- INIT_HLIST_NODE(&a);
-
- /* not fake after init */
- KUNIT_EXPECT_FALSE(test, hlist_fake(&a));
-
- hlist_add_fake(&a);
-
- /* is now fake */
- KUNIT_EXPECT_TRUE(test, hlist_fake(&a));
-}
-
-static void hlist_test_is_singular_node(struct kunit *test)
-{
- struct hlist_node a, b;
- HLIST_HEAD(list);
-
- INIT_HLIST_NODE(&a);
- KUNIT_EXPECT_FALSE(test, hlist_is_singular_node(&a, &list));
-
- hlist_add_head(&a, &list);
- KUNIT_EXPECT_TRUE(test, hlist_is_singular_node(&a, &list));
-
- hlist_add_head(&b, &list);
- KUNIT_EXPECT_FALSE(test, hlist_is_singular_node(&a, &list));
- KUNIT_EXPECT_FALSE(test, hlist_is_singular_node(&b, &list));
-}
-
-static void hlist_test_empty(struct kunit *test)
-{
- struct hlist_node a;
- HLIST_HEAD(list);
-
- /* list starts off empty */
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list));
-
- hlist_add_head(&a, &list);
-
- /* list is no longer empty */
- KUNIT_EXPECT_FALSE(test, hlist_empty(&list));
-}
-
-static void hlist_test_move_list(struct kunit *test)
-{
- struct hlist_node a;
- HLIST_HEAD(list1);
- HLIST_HEAD(list2);
-
- hlist_add_head(&a, &list1);
-
- KUNIT_EXPECT_FALSE(test, hlist_empty(&list1));
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list2));
- hlist_move_list(&list1, &list2);
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list1));
- KUNIT_EXPECT_FALSE(test, hlist_empty(&list2));
-
-}
-
-static void hlist_test_entry(struct kunit *test)
-{
- struct hlist_test_struct test_struct;
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct,
- hlist_entry(&(test_struct.list),
- struct hlist_test_struct, list));
-}
-
-static void hlist_test_entry_safe(struct kunit *test)
-{
- struct hlist_test_struct test_struct;
-
- KUNIT_EXPECT_PTR_EQ(test, &test_struct,
- hlist_entry_safe(&(test_struct.list),
- struct hlist_test_struct, list));
-
- KUNIT_EXPECT_PTR_EQ(test, NULL,
- hlist_entry_safe((struct hlist_node *)NULL,
- struct hlist_test_struct, list));
-}
-
-static void hlist_test_for_each(struct kunit *test)
-{
- struct hlist_node entries[3], *cur;
- HLIST_HEAD(list);
- int i = 0;
-
- hlist_add_head(&entries[0], &list);
- hlist_add_behind(&entries[1], &entries[0]);
- hlist_add_behind(&entries[2], &entries[1]);
-
- hlist_for_each(cur, &list) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 3);
-}
-
-
-static void hlist_test_for_each_safe(struct kunit *test)
-{
- struct hlist_node entries[3], *cur, *n;
- HLIST_HEAD(list);
- int i = 0;
-
- hlist_add_head(&entries[0], &list);
- hlist_add_behind(&entries[1], &entries[0]);
- hlist_add_behind(&entries[2], &entries[1]);
-
- hlist_for_each_safe(cur, n, &list) {
- KUNIT_EXPECT_PTR_EQ(test, cur, &entries[i]);
- hlist_del(&entries[i]);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 3);
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list));
-}
-
-static void hlist_test_for_each_entry(struct kunit *test)
-{
- struct hlist_test_struct entries[5], *cur;
- HLIST_HEAD(list);
- int i = 0;
-
- entries[0].data = 0;
- hlist_add_head(&entries[0].list, &list);
- for (i = 1; i < 5; ++i) {
- entries[i].data = i;
- hlist_add_behind(&entries[i].list, &entries[i-1].list);
- }
-
- i = 0;
-
- hlist_for_each_entry(cur, &list, list) {
- KUNIT_EXPECT_EQ(test, cur->data, i);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
-}
-
-static void hlist_test_for_each_entry_continue(struct kunit *test)
-{
- struct hlist_test_struct entries[5], *cur;
- HLIST_HEAD(list);
- int i = 0;
-
- entries[0].data = 0;
- hlist_add_head(&entries[0].list, &list);
- for (i = 1; i < 5; ++i) {
- entries[i].data = i;
- hlist_add_behind(&entries[i].list, &entries[i-1].list);
- }
-
- /* We skip the first (zero-th) entry. */
- i = 1;
-
- cur = &entries[0];
- hlist_for_each_entry_continue(cur, list) {
- KUNIT_EXPECT_EQ(test, cur->data, i);
- /* Stamp over the entry. */
- cur->data = 42;
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
- /* The first entry was not visited. */
- KUNIT_EXPECT_EQ(test, entries[0].data, 0);
- /* The second (and presumably others), were. */
- KUNIT_EXPECT_EQ(test, entries[1].data, 42);
-}
-
-static void hlist_test_for_each_entry_from(struct kunit *test)
-{
- struct hlist_test_struct entries[5], *cur;
- HLIST_HEAD(list);
- int i = 0;
-
- entries[0].data = 0;
- hlist_add_head(&entries[0].list, &list);
- for (i = 1; i < 5; ++i) {
- entries[i].data = i;
- hlist_add_behind(&entries[i].list, &entries[i-1].list);
- }
-
- i = 0;
-
- cur = &entries[0];
- hlist_for_each_entry_from(cur, list) {
- KUNIT_EXPECT_EQ(test, cur->data, i);
- /* Stamp over the entry. */
- cur->data = 42;
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
- /* The first entry was visited. */
- KUNIT_EXPECT_EQ(test, entries[0].data, 42);
-}
-
-static void hlist_test_for_each_entry_safe(struct kunit *test)
-{
- struct hlist_test_struct entries[5], *cur;
- struct hlist_node *tmp_node;
- HLIST_HEAD(list);
- int i = 0;
-
- entries[0].data = 0;
- hlist_add_head(&entries[0].list, &list);
- for (i = 1; i < 5; ++i) {
- entries[i].data = i;
- hlist_add_behind(&entries[i].list, &entries[i-1].list);
- }
-
- i = 0;
-
- hlist_for_each_entry_safe(cur, tmp_node, &list, list) {
- KUNIT_EXPECT_EQ(test, cur->data, i);
- hlist_del(&cur->list);
- i++;
- }
-
- KUNIT_EXPECT_EQ(test, i, 5);
- KUNIT_EXPECT_TRUE(test, hlist_empty(&list));
-}
-
-
-static struct kunit_case hlist_test_cases[] = {
- KUNIT_CASE(hlist_test_init),
- KUNIT_CASE(hlist_test_unhashed),
- KUNIT_CASE(hlist_test_unhashed_lockless),
- KUNIT_CASE(hlist_test_del),
- KUNIT_CASE(hlist_test_del_init),
- KUNIT_CASE(hlist_test_add),
- KUNIT_CASE(hlist_test_fake),
- KUNIT_CASE(hlist_test_is_singular_node),
- KUNIT_CASE(hlist_test_empty),
- KUNIT_CASE(hlist_test_move_list),
- KUNIT_CASE(hlist_test_entry),
- KUNIT_CASE(hlist_test_entry_safe),
- KUNIT_CASE(hlist_test_for_each),
- KUNIT_CASE(hlist_test_for_each_safe),
- KUNIT_CASE(hlist_test_for_each_entry),
- KUNIT_CASE(hlist_test_for_each_entry_continue),
- KUNIT_CASE(hlist_test_for_each_entry_from),
- KUNIT_CASE(hlist_test_for_each_entry_safe),
- {},
-};
-
-static struct kunit_suite hlist_test_module = {
- .name = "hlist",
- .test_cases = hlist_test_cases,
-};
-
-
-static int node_count;
-static struct klist_node *last_node;
-
-static void check_node(struct klist_node *node_ptr)
-{
- node_count++;
- last_node = node_ptr;
-}
-
-static void check_delete_node(struct klist_node *node_ptr)
-{
- node_count--;
- last_node = node_ptr;
-}
-
-static void klist_test_add_tail(struct kunit *test)
-{
- struct klist_node a, b;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, NULL);
-
- klist_add_tail(&a, &mylist);
- KUNIT_EXPECT_EQ(test, node_count, 1);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &a);
-
- klist_add_tail(&b, &mylist);
- KUNIT_EXPECT_EQ(test, node_count, 2);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &b);
-
- /* should be [list] -> a -> b */
- klist_iter_init(&mylist, &i);
-
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- KUNIT_EXPECT_NULL(test, klist_next(&i));
-
- klist_iter_exit(&i);
-
-}
-
-static void klist_test_add_head(struct kunit *test)
-{
- struct klist_node a, b;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, NULL);
-
- klist_add_head(&a, &mylist);
- KUNIT_EXPECT_EQ(test, node_count, 1);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &a);
-
- klist_add_head(&b, &mylist);
- KUNIT_EXPECT_EQ(test, node_count, 2);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &b);
-
- /* should be [list] -> b -> a */
- klist_iter_init(&mylist, &i);
-
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_NULL(test, klist_next(&i));
-
- klist_iter_exit(&i);
-
-}
-
-static void klist_test_add_behind(struct kunit *test)
-{
- struct klist_node a, b, c, d;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, NULL);
-
- klist_add_head(&a, &mylist);
- klist_add_head(&b, &mylist);
-
- klist_add_behind(&c, &a);
- KUNIT_EXPECT_EQ(test, node_count, 3);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &c);
-
- klist_add_behind(&d, &b);
- KUNIT_EXPECT_EQ(test, node_count, 4);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &d);
-
- klist_iter_init(&mylist, &i);
-
- /* should be [list] -> b -> d -> a -> c*/
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c);
- KUNIT_EXPECT_NULL(test, klist_next(&i));
-
- klist_iter_exit(&i);
-
-}
-
-static void klist_test_add_before(struct kunit *test)
-{
- struct klist_node a, b, c, d;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, NULL);
-
- klist_add_head(&a, &mylist);
- klist_add_head(&b, &mylist);
- klist_add_before(&c, &a);
- KUNIT_EXPECT_EQ(test, node_count, 3);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &c);
-
- klist_add_before(&d, &b);
- KUNIT_EXPECT_EQ(test, node_count, 4);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &d);
-
- klist_iter_init(&mylist, &i);
-
- /* should be [list] -> b -> d -> a -> c*/
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_NULL(test, klist_next(&i));
-
- klist_iter_exit(&i);
-
-}
-
-/*
- * Verify that klist_del() delays the deletion of a node until there
- * are no other references to it
- */
-static void klist_test_del_refcount_greater_than_zero(struct kunit *test)
-{
- struct klist_node a, b, c, d;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, &check_delete_node);
-
- /* Add nodes a,b,c,d to the list*/
- klist_add_tail(&a, &mylist);
- klist_add_tail(&b, &mylist);
- klist_add_tail(&c, &mylist);
- klist_add_tail(&d, &mylist);
-
- klist_iter_init(&mylist, &i);
-
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- /* Advance the iterator to point to node c*/
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c);
-
- /* Try to delete node c while there is a reference to it*/
- klist_del(&c);
-
- /*
- * Verify that node c is still attached to the list even after being
- * deleted. Since the iterator still points to c, the reference count is not
- * decreased to 0
- */
- KUNIT_EXPECT_TRUE(test, klist_node_attached(&c));
-
- /* Check that node c has not been removed yet*/
- KUNIT_EXPECT_EQ(test, node_count, 4);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &d);
-
- klist_iter_exit(&i);
-
- /*
- * Since the iterator is no longer pointing to node c, node c is removed
- * from the list
- */
- KUNIT_EXPECT_EQ(test, node_count, 3);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &c);
-
-}
-
-/*
- * Verify that klist_del() deletes a node immediately when there are no
- * other references to it.
- */
-static void klist_test_del_refcount_zero(struct kunit *test)
-{
- struct klist_node a, b, c, d;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, &check_delete_node);
-
- /* Add nodes a,b,c,d to the list*/
- klist_add_tail(&a, &mylist);
- klist_add_tail(&b, &mylist);
- klist_add_tail(&c, &mylist);
- klist_add_tail(&d, &mylist);
- /* Delete node c*/
- klist_del(&c);
-
- /* Check that node c is deleted from the list*/
- KUNIT_EXPECT_EQ(test, node_count, 3);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &c);
-
- /* Should be [list] -> a -> b -> d*/
- klist_iter_init(&mylist, &i);
-
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d);
- KUNIT_EXPECT_NULL(test, klist_next(&i));
-
- klist_iter_exit(&i);
-
-}
-
-static void klist_test_remove(struct kunit *test)
-{
- /* This test doesn't check correctness under concurrent access */
- struct klist_node a, b, c, d;
- struct klist mylist;
- struct klist_iter i;
-
- node_count = 0;
- klist_init(&mylist, &check_node, &check_delete_node);
-
- /* Add nodes a,b,c,d to the list*/
- klist_add_tail(&a, &mylist);
- klist_add_tail(&b, &mylist);
- klist_add_tail(&c, &mylist);
- klist_add_tail(&d, &mylist);
- /* Delete node c*/
- klist_remove(&c);
-
- /* Check the nodes in the list*/
- KUNIT_EXPECT_EQ(test, node_count, 3);
- KUNIT_EXPECT_PTR_EQ(test, last_node, &c);
-
- /* should be [list] -> a -> b -> d*/
- klist_iter_init(&mylist, &i);
-
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b);
- KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d);
- KUNIT_EXPECT_NULL(test, klist_next(&i));
-
- klist_iter_exit(&i);
-
-}
-
-static void klist_test_node_attached(struct kunit *test)
-{
- struct klist_node a = {};
- struct klist mylist;
-
- klist_init(&mylist, NULL, NULL);
-
- KUNIT_EXPECT_FALSE(test, klist_node_attached(&a));
- klist_add_head(&a, &mylist);
- KUNIT_EXPECT_TRUE(test, klist_node_attached(&a));
- klist_del(&a);
- KUNIT_EXPECT_FALSE(test, klist_node_attached(&a));
-
-}
-
-static struct kunit_case klist_test_cases[] = {
- KUNIT_CASE(klist_test_add_tail),
- KUNIT_CASE(klist_test_add_head),
- KUNIT_CASE(klist_test_add_behind),
- KUNIT_CASE(klist_test_add_before),
- KUNIT_CASE(klist_test_del_refcount_greater_than_zero),
- KUNIT_CASE(klist_test_del_refcount_zero),
- KUNIT_CASE(klist_test_remove),
- KUNIT_CASE(klist_test_node_attached),
- {},
-};
-
-static struct kunit_suite klist_test_module = {
- .name = "klist",
- .test_cases = klist_test_cases,
-};
-
-kunit_test_suites(&list_test_module, &hlist_test_module, &klist_test_module);
-
-MODULE_DESCRIPTION("KUnit test for the Kernel Linked-list structures");
-MODULE_LICENSE("GPL v2");